package com.yang.utils;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import lombok.extern.slf4j.Slf4j;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

@Slf4j(topic = "AliOssUtil")
public class AliOssUtil {

    // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
    private static String ENDPOINT = "https://oss-cn-beijing.aliyuncs.com";
    // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
//        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
    private static String ACCESS_KEY_ID = "LTAI5tS3QJ8fP3cQUubLLNTx";
    private static String ACCESS_KEY_SECRET = "2my1Ujm10fhjlqQB4bv3Pl0CfngJOV";
    // 填写Bucket名称，例如examplebucket。
    private static String BUCKET_NAME = "fresh-vegetable-e-station";

    public static String uploadFile(String objectName, InputStream inputStream) throws Exception {
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
        String url = "";
        try {
            // 创建PutObjectRequest对象。
            PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKET_NAME, objectName, inputStream);

            // 上传字符串。
            PutObjectResult result = ossClient.putObject(putObjectRequest);

            // 返回响应路径
            url = "https://" + BUCKET_NAME + "." + ENDPOINT.substring(ENDPOINT.lastIndexOf("/") + 1) + "/" + objectName;


        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
        return url;
    }

    /**
     * 删除文件
     */
    public static void deleteFile(List<String> paths) throws Exception {
        // 创建OSSClient实例
        OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
        for (String path : paths) {
            log.info("Deleting OSS object: {}", path);
            ossClient.deleteObject(BUCKET_NAME, String.valueOf(path));
        }
    }

}
